The mindo collection consists of 4 clever puzzles; can you collect and master them all. play solo, or combine them and race your friends. No matter which version you choose the rules are the same: turn and flip the double-sided tiles until you have recreated the colour pattern on the challenge card. They only fit one way into a 3x3 or 4x4 grid, so think and plan carefully. 60 different challenge cards and 4 levels of difficulty ensure hours of brain teasing fun!